Guitar headstock



FIG. 1 is a perspective view of a guitar headstock showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational thereof;

FIG. 5 is a right side elevational thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines in FIG. 1 are shown to illustrate the environment of the guitar headstock and form no part of the claimed design. 

The ornamental design for a guitar headstock, as shown and described. 